Friends cant connect to my server with external IP

[BACK]
Friends cant connect to my server with external IP
Posted On: February 9, 2023

Year after year I have been the one to host a minecraft server for a few weeks when the new minecraft update comes so me and my buddies can have some nostalgia.


Every year I set up the server. In my router settings I set the port and double check the if the server's internal ip is still good. and done. Then I give my friends my external ip. And everything works fine.


But this year I can't figure out why. None of them can join. Everything is the same. The router and it's settings, the pc I run the server on.


I'm the only one who can join the server and only with it's internal IP. But not with external one.


I just can't figure it out. I looked around for posts on the subject but did not manage the solve the problem.


What I have tried so far:.


Disabling the Firewall.


Resetting the Router.


Checking if the port forwarded internal ip is the right one.


Please help!.


Question from user John at gaming.stackexchange.com.


Answer:

You may have been put behind CG-NAT (Carrier Grade NAT) wich would explain your problem very well. The short answer for why is that we are running out of IPv4 addresses. If you want the long answer for why, then you can read more about it here:.


https://www.a10networks.com/glossary/what-is-carrier-grade-nat-cgn-cgnat/.


https://en.wikipedia.org/wiki/Carrier-grade_NAT.


You should be able to test this by having your friends connect to you with your IPv6 address instead, if it is activated. If that works, then you're surely behind CG-NAT. Most ISP's should have IPv6 activated by now. Also, if you have a old router, IPv6 might not be activated by default or even worse, not be supported at all.


If above works, then you don't really need to do anything as long as you play modern games that support IPv6.


But contact your ISP and ask them if they have done something, if you are behind CG-NAT.


If it turns out that this is the case, then you can ask them for a public IPv4 address wich is the "normal" way. Some ISP's let you change back for free while some charge you for it. Some ISP's don't even have that service.


Another solution is to set up a virtual LAN. There are a couple of different softwares that can be used for this. GameRanger is a popular one. Hamachi used to be very popular, but don't seem to be so anymore.


Answer from user ELF at gaming.stackexchange.com.



[BACK]
Friends cant connect to my server with external IP
Posted On: February 9, 2023

Year after year I have been the one to host a minecraft server for a few weeks when the new minecraft update comes so me and my buddies can have some nostalgia.


Every year I set up the server. In my router settings I set the port and double check the if the server's internal ip is still good. and done. Then I give my friends my external ip. And everything works fine.


But this year I can't figure out why. None of them can join. Everything is the same. The router and it's settings, the pc I run the server on.


I'm the only one who can join the server and only with it's internal IP. But not with external one.


I just can't figure it out. I looked around for posts on the subject but did not manage the solve the problem.


What I have tried so far:.


Disabling the Firewall.


Resetting the Router.


Checking if the port forwarded internal ip is the right one.


Please help!.


Question from user John at gaming.stackexchange.com.


Answer:

You may have been put behind CG-NAT (Carrier Grade NAT) wich would explain your problem very well. The short answer for why is that we are running out of IPv4 addresses. If you want the long answer for why, then you can read more about it here:.


https://www.a10networks.com/glossary/what-is-carrier-grade-nat-cgn-cgnat/.


https://en.wikipedia.org/wiki/Carrier-grade_NAT.


You should be able to test this by having your friends connect to you with your IPv6 address instead, if it is activated. If that works, then you're surely behind CG-NAT. Most ISP's should have IPv6 activated by now. Also, if you have a old router, IPv6 might not be activated by default or even worse, not be supported at all.


If above works, then you don't really need to do anything as long as you play modern games that support IPv6.


But contact your ISP and ask them if they have done something, if you are behind CG-NAT.


If it turns out that this is the case, then you can ask them for a public IPv4 address wich is the "normal" way. Some ISP's let you change back for free while some charge you for it. Some ISP's don't even have that service.


Another solution is to set up a virtual LAN. There are a couple of different softwares that can be used for this. GameRanger is a popular one. Hamachi used to be very popular, but don't seem to be so anymore.


Answer from user ELF at gaming.stackexchange.com.



[BACK]

What parts of the ending may change in Zelda Tears of the Kingdom? What parts of the ending may change in Zelda Tears of the Kingdom?

Posted On: June 15, 2023
Just like in BotW, the ending is probably modular, lots of things may or may not be there depending if you did something or not. (Staying vague so if someone that hasn't finished the game opens th...[More]


Why is the firmware of the Xbox Wireless Controller not updated automatically? Why is the firmware of the Xbox Wireless Controller not updated automatically?

Posted On: January 19, 2024
I have now updated all Xbox Wireless Controllers (the first time since years). I didn't know that I had to do this regularly. Is there a reason why this is not done automatically? Updates to games...[More]


What weapon talent tree combination provides the highest dps with the flail and shield? What weapon talent tree combination provides the highest dps with the flail and shield?

Posted On: October 14, 2023
New World has a new expansion, and with it, a new weapon. I've been having a lot of fun with it and am still playing around with combinations. With most of the other weapons in the game, I'...[More]


What is the name of the racing game in The Rocker (2008 film)? What is the name of the racing game in The Rocker (2008 film)?

Posted On: December 31, 2023
I’m looking for the name of the racing game in The Rocker, a 2008 comedy film starring Rainn Wilson as "Fish". In one scene, Fish walks in on his nephew Matt and his friend Curtis play...[More]


Anyone know where the last Hogwarts side mission is? Anyone know where the last Hogwarts side mission is?

Posted On: March 25, 2023
Question from user brutal_slayer99 at HogwartsLegacyGaming at reddit.com. Answer: Did you have any quests where you had already completed them before receiving the quest? That happened to me and...[More]


In Factorio What fuel should I use for my flamethrower turrets? In Factorio What fuel should I use for my flamethrower turrets?

Posted On: May 4, 2023
Version 0.13 adds flamethrower turrets to the game. They can be operated with crude oil, heavy oil or light oil. Does the choice of oil have any impact on their performance? Also, which one is the mor...[More]


How can I defeat guardians in Breath Of The Wild? How can I defeat guardians in Breath Of The Wild?

Posted On: August 9, 2023
I have not been able to discover a method of defeating guardians. I have to run away every time. What are some methods to defeating these giant instant death laser creatures? Question from user Gar...[More]


What is the console command to undo expulsion from House Hlaalu? What is the console command to undo expulsion from House Hlaalu?

Posted On: March 17, 2024
I accidentally got expelled from House Hlaalu in The Elder Scrolls III: Morrowind, and I'm not in a situation where I can easily make amends, so I would like to use the console to easily get out of th...[More]


What games come with the Nintendo Switch Online Membership? What games come with the Nintendo Switch Online Membership?

Posted On: August 5, 2023
I'm considering purchasing a Nintendo Switch Online Membership, and my primary motivation to do this is the classic game collections. Therefore, I would like to know what games in the Mario, Zelda...[More]


What game is this character on Nintendos eShop from? What game is this character on Nintendos eShop from?

Posted On: April 19, 2024
I've been planning to buy a 3DS and was exploring Nintendo's eShop online and I ran across one of the buttons advertising games with DLC and it has a character that I have never seen before?Does anyon...[More]